Ubuntu Networking :: Gufw And IN - OUT
Jan 9, 2011
Today I first tried out gufw to block some host that constantly tries to log into my FTP server which invalid user names. I managed to change the default rules to allow so that ufw wouldn't block my usual business. Then I added a rule to block all TCP from that IP to port 21. Working fine.
But what is that IN/OUT distinction good for? I specify IP addresses as from and to, so why would I need to also say whether this is in- or outbound? An old Wiki article on ubuntuusers.de is dated Ubuntu 8.04 and doesn't make that difference at all.
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Mar 9, 2011
gufw - transfer gufw rules to a new computer.Set-up over time, a gufw contains dozens of rules.Is there a way to easily copy and transfer these rules to a new computer - without spending hours of setting it up again from scratch, by hand
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Jan 1, 2010
VERY GREEN to Ubuntu. My setup:
1. computer A connects to the internet through usb dial up modem
2. computer A & B are wirelessly networked through an ADHOC network.
3. computer B doesnot need to connect to the internet.
I've installed the GUFW. If I enable it I can not see the other computer files. I use static IPs for both. I tried setting a rule but I get stumped were it asks for the port. I'm not all that familiar with ports.
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Jan 25, 2010
I did one of the recommended port scans and all ports passed but failed on pinging. How do you turn pinging on & off with GFUW?
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Aug 20, 2010
Is there a way to use the firewall to essentially lock certain programs like firefox and transmission to my vpn connection-so that in the event that my vpn connection goes down these programs do not use my default ISP Internet connection.
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Mar 11, 2011
Just want to stealth ports on my laptop. Had problems with firestarter when I installed in on 10.10. Set Firestater back to defaults and then dumped it with:
Code:
sudo apt-get purge firestarter
Set up Gufw to defaults and now am not sure what I am seeing with iptables.
iptables -L shows .....
Do these settings look correct for default settings for Gufw? or do I still have some problems with the old firestarter settings not being removed. All I want is all ports stealthed. I know that ping is enabled but I believe that is a default setting in ufw. Could I restore iptables to default with:
Code:
sudo iptables -F
and then enable Gufw and set default?
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Apr 23, 2011
I just installed gufw and was in quite a hurry. A root acces prompt came up as I started gufw for the first time, and I quickly responded with appropriate password. All I saw in this hurry was that it had something to do with the usr/share directory.So, here's my question: Does gufw require root access when first starting up
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Feb 1, 2016
Every time I install Jessie, I also install gufw as a graphical firewall frontend for desktop users, but I've also always had to create my own menu icon because the default one never showed up. I opened up the .desktop file today and took a look to see why it was never displayed in Gnome.
There was a line next to the bottom that basically told it to only appear in Unity. Deleting this line allowed it to appear in the Gnome menu. My question is this. Why is this line even in here?
Screenshot: [URL] .....
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Jan 7, 2016
I'm brand new to Linux and perhaps foolishly jumped right into Debian (Jessie). I've managed to get Dropbox downloaded/installed/whatever the proper parlance is, but in order to access it I have to input Code: Select all~/.dropbox-dist/dropboxd. When I close the root terminal, Dropbox disappears.There's no icons in the menu. Likewise with GUFW. It might be superfluous since UFW seems to be active whenever I check it through the root terminal. Is there any way to configure Dropbox to start automatically and maintain its status even if the root terminal is closed? I've looked around these forums and the internet in general and not found any similar problems. Also, I installed Spotify but whenever I click the icon nothing happens.
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May 24, 2011
I have a problem with the unix firewall (gufw). I'm using Linux Mint Debian Edition. The problem appears when I double click on the icon to bring it up for configuring. Everything is grayed out so I click on the "unlock" button. Normally, this is when gufw comes alive with color. But all I get now is a note on the bottom of the gray screen that says "Wrong Identification". Uninstalling and reinstalling UFW and GUFW didn't fix the problem. I would like to have my firewall working for me.
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Mar 25, 2010
How to install gufw? I could not find it when i clicked "install gufw" the message came as package not found.
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Nov 20, 2010
I am having a heck of a time trying to find directions on networking my two computers together in order to share files. I have two machines running Ubuntu 10.10 Desktop & Netbook remix.
They are both connected to my wireless router to connect to the internet.
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May 21, 2011
trying to bond two 3G modems but I cant Im really new in this matther so I really This is the error that appears
ubu@ubu-AOD255E:~$ sudo /etc/init.d/networking restart
* Reconfiguring network interfaces... Ignoring unknown interface ppp0=ppp0.
[code]....
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Feb 14, 2010
I just got connected to Charter Cable Internet service a few days ago and I'm having a weird problem with my home network. Prior to this my network worked fine. On my network I have a desktop running Ubuntu 9.10/64 and Virtualbox with WinXP installed, an HTPC with Ubuntu 9.10/32 installed and a laptop dual booted with Ubuntu 9.10/32 and WinXP. The desktop and HTPC are hard wired to a wireless router and the laptop is wireless. The cable modem is hard wired to the router. I have samba installed and UFW is disabled. The problem is: with the cable modem turned off or on standby, all machines connect to each other and can transfer files, etc just fine but when I activate the cable modem all of the machines can connect to the Internet but the machines running Ubuntu can't connect to each other on the home network. If I boot the laptop into Windows, it can connect to the Linux machines just fine but if I boot it into Linux, it won't connect to the Linux machines but it can connect to the Internet and as far as the desktop, Ubuntu won't connect to the network but Windows running in the Virtualbox with bridged networking can connect to all of the machines.
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Mar 1, 2010
Im trying to make an ubuntu server box my entrypoint to my networking. Meaning itll function as a server, a firewall, and a gateway. so i already installed dhcp3 and a dns server.
I have 2 ethernet cards in it. So now i wonder, should i the second card into a router's modem/wan port and make the router a switch? or should i plug it into one of the routers lan ports?
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Apr 9, 2010
I have 3 Dell Precision M4400 machines. After getting updates yesterday or today, I get random network dropouts like crazy, on wired or wireless. On one machine I was able to turn off ipv6 in grub and reboot, and it works now. However on the other 2 machines, still have the same problems. All 3 are running 9.10 64 bit. Is there a way I can back out the updates so the network works again? Anyone else see this behavior after updates today?
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May 3, 2010
I'm try to create a mobile broadband connection using my Huawei E 1550 medem. but in Network manager there is not way to select my modem in the first step ( device selection step ) the drop down menu is locked. what to do ? how to configure my modem with ubuntu ?
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Jul 13, 2010
I do have internet cause I am using it on W7. The only thing that I have done different is I left the pc on over night so I guess it went to suspend for the first time. Then I powered off. After turning the pc back on and logging in I have no internet. Not even with the Ethernet plugged directly in. There is supposed to be a little blue light on when it sees the wireless and that is off. When I click on the networking icon in the system tray it says networking disabled. It shows no wireless. When I plug directly in I still get nothing. I'm using 10.04
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Aug 3, 2010
Ok, so I am needing some drivers and I've been googling like hell to find em, however, I can never seem to find any. My adapter model is F6D6050v1.
PS: when I try sudo ndisgtk it comes up with command not found.
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Aug 24, 2010
I just started having a problem with my 10.04 laptop a few days ago, maybe Thursday, last week. When the computer is plugged into my home network (standard 192.168.1.1 sort of IPs) it works fine, but when I try to connect to my work network (130.15.90.XX) I am unable to pick up an IP. The router in my office is working fine, all the windows boxes can connect.
I've also noticed that when the computer is plugged in at work the notification icon for the networking indicates it is looking for a wireless connection (rather than the normal up/down arrows), even if wireless is deactivated
I can set a static IP in /etc/network/interfaces and everything works, so it seems to be a DHCP problem?
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Nov 7, 2010
I'm using a Packard Bell Easynote Tn36 laptop, and I'm having trouble with Ubuntu 10.10 and the wireless network card, (probably because of lack of driver). I.e. it is disabled.
How can I enable it?
I input this code:
And here is the output:
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Apr 2, 2011
Whenever I start up my laptop i do not get a wireless connection automatically. I have to rightclick network manager applet and select enable networking. After that everything works fine untill i shutdown and restart my laptop. I would like a way to change this so that my wifi connection is working whithout having to click something first..
OS:Xubuntu 10.04 LTS!
hardware: dell inspiron 6000
nm applet: 0.8.?
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Apr 18, 2011
I have a server with two ethernet ports. I configured eth0 to be static, set at 10.1.10.148. I plugged in another router into the other ethernet port in order to configure that router. I configured eth1 to use dhcp. Using /etc/network/interfaces rather than gnome network manager. When I did this, I lost internet connectivity (internet routes through eth0 of course)
- Why did I lose internet connectivity?
In order to recover internet activity, I had to disconnect the new router on eth1 of course, and do sudo ifdown eth1. That wasn't enough however. After rebooting numerous times and pulling out my hair, I finally tried configuring eth0 as dhcp, rather than static, and this fixed the problem.
- Why didn't sudo ifdown eth1 solve the problem? What information was saved between reboots that somehow remembered that I plugged in the new router? Because my thinking was if /etc/network/interfaces was identical, and the network topology was identical, after a reboot everything should be restored, but it wasn't.
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Apr 27, 2011
I can connect to the internet and browse. I'm wired and using DHCP on a Windows network. Updating Ubuntu or downloading programs takes hours for 52MB of updates. Why? I read some articles that mention Network Manager needs to be enabled at the .conf file. Can I edit this using GUI or command line only?
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Apr 30, 2011
I just upgraded to natty last night, and everything is working fine except for the network manager. I can enable and configure the wireless card via bash, but the network manager widget will not manage the wireless card.
When I first boot up, the "Enable wireless" check box is greyed out. After I enable the card via the terminal, the "Enable wireless" check box becomes ungreyed, but every time I click it, it instantly unchecks itself. I feel like Currly from the Three Stoogies. Check, uncheck, Check, uncheck.. "Slaps face repeatedly."
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May 1, 2011
I have Packard Bell easynote tn36 and I used to use ubuntu 10.10 and then when I upgrad it to ubuntu 11.04 the wireless doesn't work (disable) and I can't press the botton of Enable wireless.
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Dec 29, 2010
I was having no problems (that I knew of) browsing the web since installing Ubuntu 10.10 a week or so ago. I was previously trialling Win7 as my customers will likely be using that in the future. Then I wanted to go to internode.on.net. Got the following: Quote: Firefox can't establish a connection to the server at internode.on.net. or Quote: Oops! Google Chrome could not connect to internode.on.net
As it was just after Christmas I thought it must be down, for upgrades or maintenance etc. I later tried to go to Freebsd.org; same error. I've been having a small number of other websites give the same error. I thought nothing of this until I tried it on my wife's macpro. I could log onto all the websites I wanted to and none gave any indication of having been down. Both boxes are on the same adsl connection. I still can't access internode or freebsd on 10.10 yet have been able to access every website on OSX. Now, I was only looking at them for info but am worried I won't be able to access something important. (so far everything I 'need' is working)
ping just drops out. edit: weirdest thing! I just retried and now can not emulate the problem for internode. freebsd still won't show. that is less than five minutes between problems and resolution! I hadn't even posted! But I still would like to have an idea of what is going on. Here is the ping error for freebsd: Quote:
[Code]...
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Jan 31, 2011
I am attempting to setup and old BBSinside of DosBOXI've built one of the DosBOX Megabuilds, with the NE2000 patch.It uses libpcap in order to piggy back on top of the system's NIC. All of the dosbox side appears to be working.My system comes up, gets the MAC address i told it to use, i can load a packet driver in dosbox, all of that seems well and good. The issue, i think, is on the linux side. It's built on a Fedora 14 box. I'm getting the feeling that networking isnt getting out of the dosbox instance. Does it seem possible that fedora needs to have some config in place to link networking over to dosbox?
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Mar 9, 2011
Ive managed to install samba, I've shared a folder. I can access from a Windows 7 machine via \ubuntupublic. I can put files in the folder form the ubuntu machine and edit them on the windows box. I can put files in the folder/share from the Windows box but then I cannot edit them on the Ubuntu machine (they are read only and have a "Lock" over them). I can fix this by going to the properties of the file/folder in Windows and manually assigning "Everybody" full control (then the lock disappears and all is well.) I want read/write access to all the folders contents from both machines all the time (security is NOT a concern I WANT the permissions wide open) what am I doing wrong?
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Mar 8, 2010
I have just finished installing 9.04 via USB onto an Acer Travelmate C110.For the record, 9.10 refused to even boot on this laptop. I used universal-usb-installer and unetbootin, both without success.The installation completed successfully, except that wireless networking is not enabled. Can someone please point me to the correct resource whereby I can get the wireless nic working.
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